Computer Graphics - Graphics Concepts

16:  
Choose the correct answers.
To construct the rectangle ABCD, it is enough if
A.
 the length and breadth are given
B.
the vertices A and B are given
C.
the vertex A and the length of the diagonal are given
D.

the vertices A and C are given

 
 

Option: D

Explanation :

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17:  
A raster colour display processor supports a resolution of 1024 x 800 with upto 16 million colours simultaneously displayable. What will be the approximate size (in bytes) of the frame buffer used in the display processor?
A.

1.2 x 106

B.

2.4 x 106

C.

16 X 106

D.

105

 
 

Option: B

Explanation :

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18:  
Choose the inconect statement from the following about the basic ray tracing technique used in image synthesis.
A.
 In this technique, rays are cast from the eye point through every pixel on the screen.
B.
 In this technique, viewing transformations are not applied to the scene prior to rendering.
C.
This technique removes hidden surfaces 
D.

 In this technique, rays are cast from the light source to the objects in the scene.

 
 

Option: D

Explanation :

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19:  
Which of the following statement(s) is/are true?
A.
Request, sample and event are the three basic modes of input.
B.
Keyboard is a device ideally suited for use in sample mode.
C.
A mouse is typically a device for inputting an absolute position on the screen.
D.
Special graphics hardware support is essential for providing a mer!il-driven user interface to an application.
 
 

Option: A

Explanation :

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20:  
Which of the following devices has a relative origin?
A.
Joystick 
B.
Track ball
C.

 Mouse

D.

None of the above

 
 

Option: C

Explanation :

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